joe may be right, depending on the size of kennels, etc. my "kennel" is only about 6' wide, so i ran 2x4's across the top, plywood, and a gray/brown tarp (the blue tarps leak in no time). fast, cheap, simple, but ugly as sin. now and then, i go out and scrape most of the snow off. 2x10's? good god, how wide are those kennels?

Pole Barn idea will be looked at for sure. I know 2x10 pretty hefty but I was looking for the pitch concept being a back-yard building hacker before turning it over to the pros. Hard to explain. Thank you…all you guys!